Signed 1-page letter from William Allen White, Estes Park, Colorado to Robert Sherwood, The Playwrights' Company, New York City, August 7, 1940, Folder: 1, item: 2. Letters to Robert Sherwood, RH MS P744. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/108082 Accessed January 13, 2025.